BIOLOGICAL PAPERS. 273 



there sparse. Black; clypeus, mandibles and anterior portion of prothorax 

 brownish to brownish testaceous; scape, pedicellum and legs testaceous; meta- 

 thorax except dorsum, which is blackish, and first two abdominal segments, dark 

 chestnut brown; apical third of abdomen brownish testaceous; ovipositor brown, 

 sheaths black. 



Type: University of Kansas. Type locality : Douglas county, Kansas. One 

 specimen. July, E. S. Tucker. 



Diachasma secunda, n. sp. 



Female. — Length, 2.5 mm. Head polished, smooth, apparently impunctate; 

 antennte twenty jointed, the scape and pedicellum together about as long as the 

 first joint of the flagellum. Thorax polished, parapsidal grooves distinctly im- 

 pressed; the dorsulum and scutellum smooth without sculpture of any kind; 

 mesopleura with an oblique impression, above which the tegument is striate, the 

 striic distinct and curving from the superior margin to the posterior margin, 

 thereby making short arcs; metathorax almost uniformly rugose and shining; 

 wings transparent, tinted with yellowish, stigma pale testaceous, nervures 

 blackish testaceous, first discoidal cell with a very short petiole, transverse me- 

 diu3 interstitial, recurrent nervure almost interstitial, received by the second 

 cubital cell a trifle beyond the first transverse cubitus, second transverse cubi- 

 tus absolescent, as long as the first abcissa of the radius, a trifle shorter than 

 the second abcissa. Abdomen shining, the segments wrinkled; the basal seg- 

 ment with a large smooth space on basal two-thirds in the middle, the remaining 

 portion of the segment more distinctly wrinkled than the succeeding segments; 

 ovipositor extending beyond the tip of the abdomen about half the length of the 

 abdomen. ■ The head is of a dark chestnut brown; the mouth and mandibles 

 more testaceous, pedicellum brownish, flagellum very dark brown, almost black; 

 prothorax at least partly testaceous, mesonotum with the anterior half largely 

 black or blackish, the posterior half dark brown, the parapsidal grooves brown, 

 of the same hue as posterior portion of mesonotum, mesostemum apparently 

 black, the mesopleura dark brownish and blackish, scutellum and metathorax 

 very dark brown ; abdomen brown like the metathorax and blackish on the dor- 

 sum; legs pale testaceous, apical tarsal joints and claws brownish. 



Type: University of Kansas. Type locality: Douglas county, Kansas. One 

 specimen. July, E. S. Tucker. 



Biosteres indotatus, n. sp. 



Male. — Length, 3 mm. Front, vertex, occiput and cheeks polished, appar- 

 ently impunctate; face shining, closely tessellate punctate, with a median longi- 

 tudinal elevation, almost a keel; clypeus smooth with an impunctate or nearly 

 impunctate anterior margin, closely punctured posteriorly, at least, more coarsely 

 punctured than the face; antenna^ thirty-six jointed, the scape about as long as 

 the first joint of the flagellum, pedicellum globular. Thorax, except the metano- 

 tum, polished ; anterior third of mesonotum punctured and traversed nearly 

 longitudinally for a short distance by the parapsidal grooves which are finally 

 curved and diverge, terminating in a groove bounding the anterior lateral edge 

 of the mesonotum; posterior third of the mesonotum with a median, longitu- 

 dinal, fusiform impression that is apparently smooth ; metanotum rather flat, 

 irregularly regulose; wings with the membrane colorless, nervures and stigma 

 blackish ; first abcissa of the radius a little less than one-half as long as the 

 cubitus, equal in length to the first abcissa of the discoidal nervure, or nearly 

 as long as the pedicellum ; first discoidal cell petiolate, the petiole as long as the 

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